September Weather in Numba, Indonesia

Last updated: August 23, 2025

In September, the average temperature in Numba, Indonesia is a warm 26°C (80°F), making it a delightful time to visit. Temperatures can range from a comfortable 21°C (71°F) to a balmy 31°C (89°F), perfect for outdoor adventures. With an average humidity of 70%, you'll find the air pleasantly warm. However, be prepared for some precipitation, as the area receives about 21 mm (0.8 in) of rain over 6 days throughout the month. Enjoy your trip!

September Temperature in Numba

In September in Numba, the average temperature is 26°C (80°F), with maximums reaching 31°C (89°F) and minimums dropping to 21°C (71°F). This comfortable climate makes Numba an ideal destination for travelers seeking warm and pleasant weather.

September Weather in Numba: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Numba, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Numba, September typically has an average temperature of 26°C (80°F), with highs reaching up to 31°C (89°F) and lows dropping to around 21°C (71°F).

Data source: Temperature data for Numba generated using information from the Copernicus Climate Change Service.

September Precipitation in Numba

In Numba in September, the total precipitation amount is 21 mm (0.8 in), occurring over a span of 6 days.

September Precipitation Trends in Numba

The chart displays monthly precipitation patterns in Numba, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Numba, September typically receives around 21 mm (0.8 inches) of precipitation spread over approximately 6 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Numba

In Numba in September, humidity is 70%. With an average temperature of 26°C (80°F), this humidity feels like a warm, sticky blanket enveloping you, making travel feel laborious and prompting frequent breaks in shaded spots or air-conditioned spaces to stay comfortable.

September Average Humidity in Numba

This chart illustrates the average monthly humidity levels in Numba, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Numba is approximately 70%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Numba

In Numba in September, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Numba.

Maximum UV Index Levels in Numba for September

The chart shows the monthly maximum UV Index (UVI) for Numba in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Numba typically reaches 15, which falls under the extreme exposure category.

Data source: Numba September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How September Weather in Numba Compares to Other Months

Weather in Numba varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Numba, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Numba, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (80°F)	165 mm (6.5 inches)	78%	extreme
February Weather	27°C (80°F)	170 mm (6.7 inches)	84%	extreme
March Weather	27°C (81°F)	178 mm (7.0 inches)	84%	extreme
April Weather	27°C (81°F)	115 mm (4.5 inches)	82%	extreme
May Weather	27°C (81°F)	54 mm (2.1 inches)	83%	extreme
June Weather	26°C (79°F)	26 mm (1.0 inches)	79%	very high
July Weather	25°C (78°F)	15 mm (0.6 inches)	74%	extreme
August Weather	26°C (78°F)	20 mm (0.8 inches)	71%	extreme
September Weather	26°C (80°F)	21 mm (0.8 inches)	70%	extreme
October Weather	27°C (81°F)	65 mm (2.6 inches)	69%	extreme
November Weather	27°C (81°F)	163 mm (6.4 inches)	70%	extreme
December Weather	27°C (81°F)	177 mm (7.0 inches)	72%	extreme